Pengci (碰瓷), Beijing dialect, refers to some malicious and illegal behaviors intended for blackmail purpose. For example, one may deliberately create a motor vehicle accident and claims for compensation.
The phrase Pengci (碰瓷) from paper means “touch porcelain”, it comes from the antique industry jargon. Some bad business men will deliberately place some porcelain products toward the middle of the passage way and thus when customers pass they may break them easily. The sellers will then claim for compensation.
With time passes, Pengci (碰瓷) as an illegal behavior that cannot be identified easily is commonly seen in cities and rural areas with high population density leading to social insecurity.